Air-trap for water-engines



(No Model.)

Gr. MURRAY, Jr.

AIR TRAP POR WATER ENGINES.

Patented Oct. 9, 1883.

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w/{HTMESSES mw ATTORNEYS llNiTnD STATES ArsNfr Ormes.

GEORGE MURRAY, JR., OE CAMBRIDGEPORT, ASSIGNOR OE ONEHALF TO CHARLOTTE MORGAN, OE MELROSE, MASSACHUSETTS.

AIR-TRAP FOR WATER-ENGINES.

SPECIFICATION forming part of Letters Patent No. 286,551, dated October 9, 1883. Application iiled January 4, 1883. (No model.)

fo @ZZ whom t may concern.-

Beit known that I, GEORGE MURRAY, J r.,

a citizen of the UnitedStates, residing at Cam.

bridgeport, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Air-Traps for 'Water-Engines; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apperta'ins to make and usethe same, reference being had to the ae companying drawings, and to letters or figures of reference marked thereon, which form a part of this specication.

Figure 1 of the drawings is a representation of a side view of my device. Fig. 2 is a vertical sectional view of the water-trap T, and Fig. 3 is a vertical sectional view of the tube or dry well E. Y

This invention has relation to devices for facilitating the operation of waterengines;

.and it consists in providing the outlet with an air-trap of automatic character; and the invention further consists in the construction and novel arrangement, in connection with a water-engine, of a descending outlet having an automatic air-trap, and an inlet having a stopvalve and waterftrap, all as hereinafter Set forth.

In the accompanying drawings, the letter A designates a water-engine, whereof B is the valve-chest, and C the piston-cylinder.

D represents the inlet-pipe leading to the valvechest, and Eis the outlet-pipe leading therefrom. should be extended by means of a bored or artesian dry well, F, terminating in gravel, as

indicated at G, so as to afforda free outlet un der ground for the escaping water. Avalveseat, I1., is made in the lower portion of the outlet abovevthe air-trap K, which consists of a surrounding ease, L, having perforationsm above the lower end of the outlet-extension c, which extends downward from the valve-seat. TWater therefore will always stand in the case or cup Il, and as the lower end of the outletpipe a is immersed therein air cannotppass through the trap upward to the engine. The valve-seat h is provided with a valve, b, the

stem of which (indicated at c) extends upward It is preferred that the outlet through the cap d of the outlet-pipe. When the valve b is raised from its seat, the escaping column of water from the engine moves downward, and facilitates materially the action of the engine, adding to its power. When the valve is closed, the water is retained in the upper portion of the outlet, thereby prevent-V ing the engine from losing its priming.

The inlet D is provided with a water-trap,

T, consisting of an air-chambeigV, into which the supplypipe opens at zo in the bottom g. A checkw-falve, k, is provided at the mouth of the supply-pipe in the chamber V, and from the lower portion of the chamber the inlet ex tends` to the valve-chest of the engine. The

object of the air-cha1nber and its valve is to obviate the effect of lthe recoil of the water andto assist the action ofthe engine. When the check-valve closes, it prevents the backward movement of the water, and as the air in the chamber V is compressed when the main -valve of the engine opens the water of the airchamber is thrown into the cylinder with addtional power. The air-chamber should be made of a little less capacity than the cylin der of the engine in connection with which it y is designed to work.

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s-

l. The combination, with the outlet of awatercngine, of the air-trap K in the lower por tion thereof and the stop-valve b above said trap, substantially as specified.

2. The combination,with a waterfengine, of an outlet extending downward into the ground, and provided with an automatic air-trap, K, and a `stop-valve above said air-trap, substarr tially as specified. A

3. The combination, with a water-engine, of a descending outlet having an automatic airtrap, K, and stop-valve b, and an inlet having a water-trap, T, and cheek-valve 7c, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses. v

' VGEORGE MURRAY, JR.

lVitnesses:

WM. Boneless, W. B. CHILD. 

